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Black Friday - Aquarium Care & Maintenance

Black Friday

Black Friday is here! 🖤 Thousands of products with a fair discount.

The offer is valid from 30th October to 30th November 2026.

Continue

The offer is valid as long as the Goods are included in the Campaign or until the Goods are sold out during the Campaign. The Goods offer may be updated during the Campaign.
Stock for some products gets redistributed to customers in the Czech Republic, Slovakia, Austria, Hungary, and other countries where Alza delivers its products, based on the earlier order delivery time. This does not apply to regional/language-specific product versions.
Full Terms and Conditions of the campaign can be found here.
Alza reserves the right to change the terms and conditions of the campaign.

Tetra Crystal Water 100 ml - Aquarium Water Treatment

Tetra Crystal Water 100 ml

4.80 € 5.99 €

Aquarium Water Treatment - routine care, suitable for water purification, for freshwater aquariums, against haze, accelerates healing, volume 100 ml, weight 101 g

Added to cart

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Tetra Crystal Water 250 ml - Aquarium Water Treatment

Tetra Crystal Water 250 ml

9.81 € 10.90 €

Aquarium Water Treatment - routine care, suitable for water purification, for freshwater aquariums, against haze, accelerates healing, volume 250 ml, weight 266 g

Added to cart

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Seachem Pristine 250 ml - Aquarium Water Treatment

Seachem Pristine 250 ml

14.21 € 16.90 €

In stock at the supplier's

2 sizes

Aquarium Water Treatment - normal care, suitable for water purification, for marine aquariums and freshwater aquariums, anti-clouding, volume 250 ml

Added to cart

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Easy Life Catappa-X 250 ml - Aquarium Water Treatment

Easy Life Catappa-X 250 ml

7.25 € 8.63 €

In stock at the supplier's

Aquarium Water Treatment - routine care, suitable for water treatment, for marine aquariums and freshwater aquariums, against diseases, accelerates healing and speeds up...

Added to cart

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Seachem pH Alert - Aquarium Water Treatment

Seachem pH Alert

11.34 € 13.49 €

In stock at the supplier's

Aquarium Water Treatment - routine care, suitable for water testing, for freshwater aquariums, pH test

Added to cart

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Seachem de*nitrate 500 ml - Aquarium Water Treatment

Seachem de*nitrate 500 ml

9.97 € 11.86 €

In stock at the supplier's

Aquarium Water Treatment - routine care, suitable for water treatment, for marine aquariums and freshwater aquariums, against haze, forms a biofilter, volume 500 ml

Added to cart

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